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countrygirl1431

  • one year ago

Solve the following equation, answer as a reduced, mixed number. Then place the correct number in the box provided. 7(x -2) + 3(x + 2) = 5(x - 6)

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  1. anonymous
    • one year ago
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    You multiply 7 with x and -2, and 3 with x and 2, and 5 with x and -6. Then you get 7x-14+3x+6 = 5x-30, now you just isolate x

  2. kc_kennylau
    • one year ago
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    Please expand the brackets first :) 7(x-2) is actually 7x-14 3(x+2) is actually 3x+6 5(x-6) is actually 5x-30 So we would have (7x-14) + (3x+6) = (5x-30) Do you understand this step?

  3. countrygirl1431
    • one year ago
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    yes

  4. madhu.mukherjee.946
    • one year ago
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    did you do the sum?

  5. countrygirl1431
    • one year ago
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    @kc_kennylau

  6. kc_kennylau
    • one year ago
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    Then we can expand it furthermore: (7x-14) + (3x+6) is actually (7x-14+3x+6) Therefore (7x-14+3x+6)=(5x-30)

  7. kc_kennylau
    • one year ago
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    Now we can group the terms with "x" on the Left Hand Side, and the terms without on the Right Hand Side: 7x+3x-5x = -30+14-6

  8. madhu.mukherjee.946
    • one year ago
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    (7x-14) + (3x+6) = (5x-30) 10x-8=5x-30 5x=22 x=22/5

  9. countrygirl1431
    • one year ago
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    thanks

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